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10.21: Mammal Reproduction

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

cloaca

Single exit and entrance for sperm, eggs, and waste.

marsupial

Mammal in which the young are born in an immature state and continue development in the pouch.

monotreme

Mammal with some birdlike and reptilian characteristics, such as laying eggs.

placenta

Spongy structure that passes oxygen, nutrients, and other useful substances from the mother to the fetus.

placental

Mammal with an organ that feeds the fetus and removes waste products.

sexual dimorphism

Distinct difference in appearance between the males and females.

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Difficulty Level:
At Grade
Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Aug 30, 2016
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SCI.LSC.841.4.L.1